I'm a big fan of Matrix becoming more Discord-like. I've been in many small to medium group chats and internet communities over the last decade. About everyone I know from those jumped over to Discord shortly after it came out, and its structure ("servers" that are easy to create by anyone being the main unit which contains not only channels but a member list, roles, and moderators instead of having those each per-channel) is such an upgrade over everything we used before, to the point I was baffled that the design wasn't more copied by others. (Yeah I know that IRC is somewhat similar, but the differences make all the difference. Anyone being able to make a "server", it having a graphical identity, being able to join it through a link, that you don't register in an arcane way on each one all over again with an unconnected identity, that you get channel history, that it's integrated with voice/video chat channels, and that you're a member of all channels in it are all huge factors in how they shape their social spaces and get used.)